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September Vegetable and Herb Gardening Calendar for Cool & Alpine Climate Australia

Australia - cool climate zones
Australia – Cool & alpine climate zones

It’s September, the beginning of spring, the time of new life and renewal! The weather is starting to warm up, but there are still cold days, rainy weather and winds to contend with.

Weather is still cold in Canberra and Hobart, with frosts in high inland regions. In Hobart days will be cool and cloudy, with an average of half a month of sunny weather, and half a month of rainy days. In the inland areas weather is variable, with cool nights or crisp and sunny days in higher regions.

Snow may fall in Canberra, and there will be snowfall in the Great Dividing Range and Mount Wellington in Tasmania, with occasional snow in Hobart.

Early spring is the best time to mulch garden beds, as the soil is still moist and slowly warming up.

This month is the last chance to plant bare rooted deciduous trees and shrubs, as they need time to establish before the summer heat arrives. Container grown ones with well-developed roots can be planted right through spring.

Things to Do This Month:

Vegetables and Herbs to Grow in September (Cool & Alpine Climate)

September Seeds to Sow and Seedlings to Plant
(Cool & Alpine Climate Australia)
Sow/PlantHarvest (weeks)
Asparagusplant crowns2-3 years
Beetrootdst7-10
Broccolist10-16
Burdockd17-18
Cabbagest8-15
Cape Gooseberrys14-16
Capsicums10-12
Carrotd12-18
Cauliflowerst15-22
Celeriacs14-28
Celerys17-18
Chilli*s9-11
Chivesst7-11
Collard Greensdst8-11
Coriander (Cilantro)dst30-45
Daikond8-10
Dilldst8-12
Eggplants12-15
Endivedst10-11
Fennel (Bronze)s14-15
Fennel (Florence)dst14-20
Globe Artichokess42-57
Horseradishplant crowns16-24
Kaledst7-9
Kohlrabidst7-10
Leeksdst15-18
Lemon Balms8-10
Lettucedst8-12
Luffas11-12
Marrows12-17
Mints8-12
Oniondst25-34
Parsleydst9-19
Parsnipd17-20
Peasdst9-11
Potatoplant seed potatoes15-20
Pumpkins15-20
Radishd5-7
Rocketd21-35 days
Sages18 months
Salsifyd14-21
Silverbeet (Swiss Chard)dst7-12
Snow Peasdst12-14
Spinachdst5-11
Spring Onions (Bunching Onions)dst6-10
Squashs7-8
Strawberry (seed)s12 months
Strawberry (plants)t11
Summer Savoryd6-10
Sunflowers10-11
Sweet Corns11-14
Sweet Marjoramdst8-10
Thymed42-52
Turnipd6-9
Watermelons9-14
Winter Savoryd6-10
Zucchini (Courgette, Marrow)s6-9

Key:
d = sow seeds directly into ground
s = sow seeds into seed tray
ds = sow seeds directly into ground or seed tray
t = transplant seedlings (small plants) into larger pots or plant into ground
*= frost tender
**= sow after frost

Download printable PDF version of Gardening Calendar (Australian Cool & Alpine Climate) – September

To help improve these garden calendars, feedback and additional information from readers is greatly appreciated! Australia’s climate varies considerably, and local knowledge of when particular things need to be done in the garden are most helpful to others living in those area, so please feel free to share.

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